Hiroshima_ The World's Bomb - Andrew J. Rotter [130]
9. Soviet entry and the bombing of Nagasaki
It is, in any case, very difficult to disaggregate the effect of the Hiroshima bombing from the impact of two other profound shocks that soon followed in its train. First, and despite his longstanding pessimism that his government’s overtures to the Soviets would amount to anything, Ambassador Sato was nevertheless stunned when Foreign Minister Molotov summoned him, at 5.00 p.m. Moscow time on 8 August, to inform him that, ‘as of August 9, the Soviet Union will consider itself in a state of war with Japan’. The declaration fulfilled the promise Stalin had made to Roosevelt and Churchill at Yalta six months earlier. That it came despite the Soviets not yet having got from China a satisfactory territorial agreement suggests that its timing, if not its fact, was in part determined by the bombing of Hiroshima. Stalin had apparently spent much of the previous day discussing the bomb with advisers. James Byrnes, the American Secretary of State, had hoped the bombs would end the war with Japan short of the Russians getting ‘too much in on the kill’, but the bombing may have moved Stalin to act more quickly than he might otherwise have done. And Molotov’s statement to Sato that the declaration would take hold on the 9th was mendacious: it turned out Molotov was referring to the time at the front. Thus, just after midnight Trans-Baikal time—it was 6.10 in the evening of 8 August in Moscow—Soviet troops crossed into Manchuria in force and on several fronts at once. They surprised the Japanese Kwantung Army, which was understrength and demoralized, and drove hard toward the cities of Changchun, Mukden, Harbin, and Kirin. Another force attacked Korea. Some Japanese units resisted, while others withdrew or simply melted away.43
As he was driven away from the Kremlin after his stark meeting with Molotov, Sato told his embassy secretary, ‘The inevitable has now arrived.’ Prime Minister Suzuki said much the same thing when he learned of the Soviet declaration at dawn on the 9th. Togo and leading foreign ministry officials were already awake and discussing the new crisis; they quickly resolved that Japan would have to accept the Potsdam Declaration. Togo called on Yonai, another of the Big Six, who agreed that the time had come to bow to the inevitable.